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. Author manuscript; available in PMC: 2015 Jul 23.
Published in final edited form as: Int Conf Signal Process Proc. 2014 Oct;2014:678–681. doi: 10.1109/ICOSP.2014.7015087

Fig. 4.

Fig. 4

Manual landmark selection examples. This landmark is included in these reference images captured from different distances, as shown in the label under each picture. The calculated scale of each image is listed in the parentheses.